Author Topic: Celestron Firstscope Newtonian  (Read 837 times)

pregdefciato

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Celestron Firstscope Newtonian
« on: December 24, 2017, 03:11:30 AM »
Thinking about purchasing a used telescope that I believe is a fantastic deal for my very first telescope.  It's a Celestron Newtronian Firstscope 114mm w F: 910mm and that I have a 2nd one 2 contemplate that's the Meade #395 90mm F:1000mm.  From what I am studying the Celestron 114 mm will allow more light?  Is this right?  At $45 for your Celestron I think that it's a fantastic bargain for my first extent.  Meade is $100.  Dad needed a Selsi 60mm F: 800mm which we enjoyed as kids.  Attempting to understand all the information on telescopes and that I feel that the greater number aperture seems like it'd be better?  Any advice is welcome.  Thanks so much.  Christine



halubicom

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Re: Celestron Firstscope Newtonian
« Reply #1 on: December 29, 2017, 09:55:50 PM »
Quote
Looking to purchase a used telescope which I believe is a good deal for my first telescope. It's a Celestron Newtronian Firstscope 114mm w F: 910mm and I have a 2nd one 2 consider which is the Meade #395 90mm F:1000mm. From what I'm reading the Celestron 114 mm would allow more light? Is this correct? At $45 for the Celestron I think it's a good deal for my first scope. Meade is $100. Dad had a Selsi 60mm F: 800mm which we enjoyed as kids. Trying to understand all the info on telescopes and I think the higher number aperture seems like it would be better? Any advice is welcome. Thanks so much. Christine

Hello, and welcome to Cloudy Nights!

Is this the firstscope 114mm
https://www.amazon.c...e/dp/B000051TN3

If it is the long tube version the at the price it is a very good and better than the 90mm refractor in terms of price and light gathering

However if it is a short tube in other words the length of the tube is about half the focal length of 910mm then stay away as it is a type called Bird-Jones and is known to have poor optics

However to fully help you can you tell us what else these scopes come with like eyepieces, tripods/mounts, finderscopes, diagonal, etc

Pat Young

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Re: Celestron Firstscope Newtonian
« Reply #2 on: December 31, 2017, 09:12:51 AM »
It's this one here in the Pittsburgh PA areahttps://pittsburgh.c...6242622931.html Can you see the link? Thanks for your reply.

Kareem Gillespie

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Re: Celestron Firstscope Newtonian
« Reply #3 on: December 31, 2017, 05:40:38 PM »
That is the long tube version. That is good news. As long as the mirror is in good condition and judging for the pictures I don't see any damages I would jump on it quickly. $45 is a good price

stimtinpaso

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Re: Celestron Firstscope Newtonian
« Reply #4 on: January 01, 2018, 10:06:50 AM »
Hello Christine, welcome to the forum.

Although the 114mm long tube reflector a has bigger aperture than the 90mm refractor, refractors are more efficient than reflectors in getting the captured light to your eye.  The mirrors in the 114 scope only reflect about about 90% of the light that hits them and there are two.  Meanwhile the refractor probably gets more than 95% of the light it collects to your eye.

I can't say for sure, but I think these two telescopes will give you a view very close to each other. I ran a side by side test for another user with a 120mm refractor and a 150mm reflector, and they were about the same. Not quite the same situation, but it rhymes with yours.

Now that being said, you can concentrate on the price, the mount, and the refractor is a bit more rugged than the reflector, and will not need adjustments.

Just as important in a low cost telescope is how shakey it is. I had the meade 395, but I don't know if the mount is the same as the one for sale by you.
Mine was on an AZ3 mount, and it was .... OK. not great. The scope moved left and right well, but up and down was challenging.
I can't comment on the firstscope mount, except that it is what is called a equitorial mount which means it does not move up and down, left and right
like simple mounts do, but is set up to track stars in the night sky. It does take a little getting used to, but once figured out, you can easily track objects
when the move in the night sky.

Used scopes are fine as long as you can inspect the scopes, or have the seller send good pics of the optics.
Check both mirrors on the reflector, They should be "shiny" and have no scratches.
Dirty mirrors can be cleaned, but you have to follow the instruction here and be brave.
Check the focuser to make sure it racks in an out smoothly.
There might be knobs on the back of the reflector to adjust the mirror make sure you can turn them.

If you decide to go with the refractor check the objective lens to make sure it is clean and scratch free.
Same as the reflector if the lens of the refractor is very dusty or dirty it can be cleaned but you have to be brave.
Also check the focuser to see if it racks smoothly.

I hope I did not confuse you even more.
If you have any other questions feel free to ask.

Jon Venning

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Re: Celestron Firstscope Newtonian
« Reply #5 on: January 03, 2018, 07:16:14 PM »
Hello Christine and  to Cloudy Nights.

The FirstScope 114 is an older model, it might be 20 years old. But in this case, that's a good thing, the older ones had a wooden tripod and were sturdier and more stable than the more recent versions. If the mirrors look reasonably clean and bright, $45 is a very good price for one of these,

The Meade 395, that would depend on the mount. One version I found used an equatorial mount, the same mount as the Meade 4500 Newtonian, its not a bad mount but the counterweight shaft mount was weak and more than half of the ones I have seen were broken off.

Jon

pafunsirep

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Re: Celestron Firstscope Newtonian
« Reply #6 on: January 04, 2018, 05:12:52 PM »
Here's the link for the Meadehttps://pittsburgh.c...6234311840.html that shows the mount. Owner sent this info: t's a Meade Model #395 90mm Equatorial refracting Telescope
Objective (main) lens focal length - 1000mm
Objective lens diameter - 90mm (3.54")
Focal ratio - f/11
Mounting - german equatorial

I am only looking to spend $100 on a nice used scope for beginners level. I saw several for sale in our area at $25 which is also a great price to get a beginner's scope such as this onehttps://pittsburgh.c...6235450180.html but I want one that will be used for a year or two vs a few months. I think the Bushnell might not be as powerful as I'd like compared to the Celestron.

Thank you everyone for the information you provided. It's very helpful and useful and not confusing at all. Replies are welcome & very informative.

Christine

Jeremy Swaine

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Re: Celestron Firstscope Newtonian
« Reply #7 on: January 08, 2018, 01:44:32 PM »
I would go for the Meade. It looks to have a sturdier mount and tripod and both scopes are around the same aperture.

The 114mm would require collimation, and you don't know how old the mirror is so it could have already started to corrode.

A 4 inch refractor will start you off just fine. It requires hardly any maintenance.

Remember, you get what you pay for.

ciomapicsta

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Re: Celestron Firstscope Newtonian
« Reply #8 on: January 10, 2018, 03:57:51 AM »
Quote
I would go for the Meade. It looks to have a sturdier mount and tripod and both scopes are around the same aperture.

The 114mm would require collimation, and you don't know how old the mirror is so it could have already started to corrode.

A 4 inch refractor will start you off just fine. It requires hardly any maintenance.

Remember, you get what you pay for.


The Meade is a 90 mm, not a 4 inch.

When buying on Craigslist, price and value are not closely correlated, some scopes are seriously overpriced, some are seriously underpriced.

Both the Meade 90 mm and the First scope 114 are reasonable scopes, the question is what kind of condition are they in.

Jon

Tom Durham

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Re: Celestron Firstscope Newtonian
« Reply #9 on: January 10, 2018, 04:34:03 AM »
Quote
Here's the link for the Meadehttps://pittsburgh.c...6234311840.html that shows the mount. Owner sent this info: t's a Meade Model #395 90mm Equatorial refracting Telescope
Objective (main) lens focal length - 1000mm
Objective lens diameter - 90mm (3.54")
Focal ratio - f/11
Mounting - german equatorial

I am only looking to spend $100 on a nice used scope for beginners level. I saw several for sale in our area at $25 which is also a great price to get a beginner's scope such as this onehttps://pittsburgh.c...6235450180.html but I want one that will be used for a year or two vs a few months. I think the Bushnell might not be as powerful as I'd like compared to the Celestron.

Thank you everyone for the information you provided. It's very helpful and useful and not confusing at all. Replies are welcome & very informative.

Christine

Yes the meade scope is identical to the one I had. The scope was great.  I cannot comment on the mount, because mine was an alt-az mount which Like I said before, simply moves left-right up-down.  The EQ mount pictured on your meade follows objects in the sky when it moves on one axis. It is called a germen-equitoral-mount or GEM for short. If you watch the scope move it will trace out an arc in the sky, not a straight line with respect to the horizon.

Like you, I purchased my meade off of craigslist in Chicago. Mine was truly a museum piece, it was kept in a fancy person's den as a prop for 25 years
and when he died the kids were selling the scope. I even got the paper work, eyepieces, manuals everything show room new, and I paid $100.00.
If you want to haggle, I think you could offer $75.00 for this, and both of you would be getting a good deal which is what a deal is all about right?
Both parties win.

Jon Issacs commented on this mount above. Jon has more knowledge in his big toe than I have in my whole brain, so his opinions are very valid.

I am a no no nonsense cheap telesclope guy.  I try to find value in low cost telescopes, that I both use and recommend to beginners.
Both to the scopes you have mentioned are excellent scopes for a beginner and for the money.

exmartata

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Re: Celestron Firstscope Newtonian
« Reply #10 on: January 10, 2018, 10:51:32 PM »
My firstscope was a Tasco Luminova 900mm newtonian/eq1 and a Celestron ep and filter kit.
Decent scope, would usually handle 150x+. Gave crisp clean images with plossl eps.

Nice for the major planets, moon, and some deep space objects.

Still have the scope with a escopes/coulter 1/8 wave primary mirror, now handles 180x-200x.

Good viewing,

Dave

Chris Goldsby

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Re: Celestron Firstscope Newtonian
« Reply #11 on: January 11, 2018, 01:35:15 PM »
Hi Christine and welcome to CN. Personally, I'd go for the refractor. The reflector, even though it has a larger aperture, also has a central obstruction (the secondary mirror) that takes away some of that advantge. When using the reflector you also have to move the scope around in the rings as you move the scope in order to keep the eyepiece in a good position for viewing. The refractor presents none of these problems and would be easier to use. Reflectors also need to collimated on a regular basis, where it is very rare that a refractor ever needs any adjusting of the lenses.
The biggest challenge may be learning to use the equatorial mount that these scopes come on. If they don't come with instructions I would suggest asking here on the forum for some links.

Cory Bass

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Re: Celestron Firstscope Newtonian
« Reply #12 on: January 11, 2018, 02:15:36 PM »
Hello and welcome!
I just happen to have (and USE as my "grab-n-go") the Celestron 114MM scope. It sounds like mine, the older model. I also just got rid of an older Meade 312 90MM refractor. Between the two, the refractor is easier to use, but I think that's where the advantages end for that scope. But here's the REAL question: Exactly what do you want to see? Simple question, but not a simple answer. If you just want to look at the Moon, Planets and really bright stars, by all means, get the refractor. IF you want to see more and want to start looking at the larger Deep Sky Objects as well, then go with the reflector. I like to do both, so that's why I got the 114. Keep in mind, the 114 has to be collimated and for that you'll need a collimator, so figure that into your budget. And don't forget, a scope is only as good as it's eyepieces, so budget those in accordingly. DON'T get cheap eyepieces, even though it's a cheap scope, price-wise. If you're going to do this, do it right. As always, we're available for follow-up Q's anytime, so don't be shy!

STARKID2U

Phil Barela

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Re: Celestron Firstscope Newtonian
« Reply #13 on: January 11, 2018, 02:40:33 PM »
I ended up getting the Celestron 114. At $45 I couldn't pass up the price and it was in excellent condition. I cleaned the mirror and put it together last night by myself, it was easy. I can't figure out how to add a photo from my files but once I do I'll upload it. Collimation might be tricky as I don't know anything about it yet but will research. I might get a refractor later. I want to see the moon, planets, deep sky, etc. I haven't gazed since a child so just want to enjoy it for now. I have a 4mm & 20mm eyepiece that came with the scope and a 2x Barlow. Have to figure out how to use the Barlow as I didn't see instructions for that. Not sure what to view w/the 4mm eyepiece. There is a green filter too but the guy didn't know what it was for, maybe bright objects? It was his kids scope & they are in college now. I might have gone for the Meade had I not already contacted the guy about the Celestron & set up a meeting as the Meade sounds easier to use but this will give me good practice. I believe both scopes you have to move to gaze as I don't think the Meade is powered to follow but not sure as I didn't get much info on it. I could purchase it & give to my dad if it tracks as that is what he wants.

Christine

charnhoupito

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Re: Celestron Firstscope Newtonian
« Reply #14 on: January 11, 2018, 04:30:08 PM »
Christine:

This scope should be good for viewing the moon and the planets as well as deep space objects.

The Celestron Astromaster drive unit should fit your mount and is about $35.

https://www.astronom...ker_p15242.aspx

Jon